2017 Mercedes-Benz Coraza S2

The 2017 Mercedes-Benz C-Class, marketed as the Coraza S2 in some regions, is a compact executive car known for its blend of luxury, performance, and technology. Engine options for this model year include a 2.0L turbocharged inline-4, a 3.0L twin-turbo V6, and a 4.0L twin-turbo V8 (AMG models). The 2.0L engine produces around 241 horsepower and 273 lb-ft of torque. A 9-speed automatic transmission is the most common transmission option. Owners often praise the C-Class for its comfortable ride, elegant interior, and advanced technology features. Common criticisms include a somewhat cramped rear seat and potentially expensive maintenance costs.

Engine

2.0L Turbocharged Inline-4

• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Check engine light, rough idling, poor performance.
  • Solution: Replace the faulty camshaft adjuster solenoid.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• High-Pressure Fuel Pump Failure
  • Description/Symptoms: Long crank times, stalling, check engine light.
  • Solution: Replace the high-pressure fuel pump.
  • Estimated Cost to Fix: $800 - $1500
  • Recalls: None Found

3.0L Twin-Turbo V6

• Turbocharger Oil Leaks
  • Description/Symptoms: Blue smoke from exhaust, oil consumption, possible oil smell.
  • Solution: Replace turbocharger oil lines and seals, or turbocharger replacement.
  • Estimated Cost to Fix: $500 - $3000+ (depending on the extent of the damage)
  • Recalls: None Found
• Coolant Leaks (Water Pump)
  • Description/Symptoms: Coolant warning light, visible leak under the car, overheating.
  • Solution: Replace the water pump.
  • Estimated Cost to Fix: $500 - $1000
  • Recalls: None Found

Transmission

9-Speed Automatic (All Engine Options)

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky gear changes, hesitation when accelerating, particularly between lower gears.
  • Solution: Transmission control module (TCM) software update, valve body replacement, or complete transmission replacement.
  • Estimated Cost to Fix: $200 (software update) - $6000+ (transmission replacement)
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, stalling, transmission slipping.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1500 - $3000
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure (If Equipped)
  • Description/Symptoms: Vehicle sagging, suspension malfunction warning light.
  • Solution: Replace the air suspension compressor.
  • Estimated Cost to Fix: $1000 - $2500+
  • Recalls: None Found
• Air Strut Leaks (If Equipped)
  • Description/Symptoms: Vehicle sagging, suspension malfunction warning light, hissing sound from the affected strut.
  • Solution: Replace the leaking air strut.
  • Estimated Cost to Fix: $800 - $2000+ per strut
  • Recalls: None Found

Electrical

• COMAND System Issues
  • Description/Symptoms: Freezing, Crashing, Bluetooth Connectivity Issues, Navigation Problems.
  • Solution: Software updates, COMAND unit replacement.
  • Estimated Cost to Fix: $100 - $200 (software update) to $1000+ (replacement)
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car won’t start, frequent jump starts required.
  • Solution: Diagnose and repair parasitic drain, replace the battery.
  • Estimated Cost to Fix: $150 - $500+ (depending on the source of the drain)
  • Recalls: None Found

Exterior

• Panoramic Sunroof Issues
  • Description/Symptoms: Rattling, difficult opening/closing, water leaks.
  • Solution: Lubricate sunroof tracks, repair or replace sunroof motor/components.
  • Estimated Cost to Fix: $100 - $1500+
  • Recalls: None Found

Interior

• Seat Occupancy Sensor Malfunction
  • Description/Symptoms: Airbag warning light, passenger airbag may not deploy in an accident.
  • Solution: Replace the seat occupancy sensor.
  • Estimated Cost to Fix: $500 - $1200+
  • Recalls: None Found

Summary

The 2017 Mercedes-Benz C-Class, while offering luxury and performance, can be prone to a variety of issues. Engine problems, particularly with the camshaft adjusters and high-pressure fuel pump on the 2.0L engine, and turbocharger issues on the 3.0L engine, are a concern. Transmission problems with the 9-speed automatic, especially rough shifting, can be costly to fix. Electrical problems with the COMAND system and battery drain are common annoyances. Air suspension issues, if equipped, can lead to significant repair bills. While many issues are relatively minor, some can be quite expensive to repair, making it important to carefully inspect any used 2017 C-Class and budget for potential maintenance costs.